When your AC stops blowing cold air, it’s noticeable. Discover why your AC is not cooling the house and what you can do about it.

Thermostat Improperly Set

Your thermostat is the brain of your air conditioner. If it’s not set properly, the system won’t run the way you’d expect. To do some air conditioner troubleshooting, start by ensuring the fan is set to “Auto” so that it only runs when the compressor is on. Next, check the programs that adjust the temperature throughout the day are set for the proper time and temperature. Also, check to ensure the time on the thermostat is set properly.

Clogged Air Filter

If your AC is not cooling, your air filter may be clogged. This will prevent air from moving through the system, and you won’t have cool air coming from your vents. Check to see if it has visible dirt on the intake side, and replace it if it does. Be sure to inspect it monthly, expecting to replace it every 30 to 90 days.

Low Refrigerant

If your system has even a pinhole leak, it’ll cause the refrigerant to run low, leaving too little to run through the system. This will cause your evaporator coil to ice up, preventing it from absorbing heat and restricting airflow through the system. This is a problem a professional should address.

Dirty Evaporator Coil

Your evaporator coil will get dirty over time, which is why a technician will clean it during routine AC maintenance. As contaminants settle on it, the film will act as insulation, reducing the heat transfer capacity as the system runs.

When Aurora, Illinois homeowners want a trustworthy service provider, they’ve called Andersen Plumbing and Heating since 1985. Our team provides heating and AC repair, maintenance, and installation services together with a wide range of residential plumbing services. Call to schedule your AC repair with one of our expert technicians today, and find out why your AC is not cooling your house.

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